Global Patent Index - EP 1323913 A2

EP 1323913 A2 20030702 - Engine fuel control device and idling air-fuel ratio control method

Title (en)

Engine fuel control device and idling air-fuel ratio control method

Title (de)

Kraftstoffsteuergerät für eine Brennkraftmaschine und Verfahren zur Regelung des Kraftstoff-Luft-Gemischgehaltes

Title (fr)

Dispositif pour la régulation du carburant et méthode de commande du rapport air/carburant au ralenti

Publication

EP 1323913 A2 20030702 (EN)

Application

EP 02028022 A 20021213

Priority

JP 2001393338 A 20011226

Abstract (en)

The invention relates to an engine fuel control device including an idle speed control valve (205) that controls an engine speed during idling by bypassing a throttle valve (202), an air bleed valve (208) that is disposed downstream from a regulator (207) for regulating the pressure of a fuel gas supplied to the engine (201) and that controls a flow path area of a passage open to atmosphere, a target speed setting means that sets a target engine speed during idling, a throttle valve opening control means that controls the opening of the idle speed control valve (205) so as to maintain the target engine speed, a control factor setting means that sets a factor so as to control the opening of the idle speed control valve (205), a capturing means that captures a change in a state of the factor, and a control means that controls the air bleed valve (208) based on the change in the state of the factor captured by the capturing means. It controls the air bleed valve (208). <IMAGE>

IPC 1-7

F02D 41/14; F02D 41/16; F02D 19/02

IPC 8 full level

F02M 21/02 (2006.01); F02D 19/02 (2006.01); F02D 31/00 (2006.01); F02D 35/00 (2006.01); F02D 41/00 (2006.01); F02D 41/16 (2006.01)

CPC (source: EP US)

F02D 19/023 (2013.01 - EP US); F02D 31/005 (2013.01 - EP US); F02D 35/0061 (2013.01 - EP US); F02D 41/0027 (2013.01 - EP US); F02D 41/1454 (2013.01 - EP US); F02D 2011/102 (2013.01 - EP US); F02D 2041/2027 (2013.01 - EP US); Y02T 10/30 (2013.01 - EP US)

Citation (applicant)

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SI SK TR

DOCDB simple family (publication)

EP 1323913 A2 20030702; CN 100359148 C 20080102; CN 1429979 A 20030716; JP 2003193891 A 20030709; JP 4365553 B2 20091118; US 2003116127 A1 20030626; US 6725831 B2 20040427

DOCDB simple family (application)

EP 02028022 A 20021213; CN 02158469 A 20021226; JP 2001393338 A 20011226; US 32804502 A 20021226